 Tue Feb 22 05:47:18 2022, JM, CB, LV, PM, AK, Beam ON, Target ON Run 54 - 2 events at 10MeV! 11x
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06:47
Beam ON ~2.0E6 pps, still fluctates between 1e6 and 6e6 (like a step function)
Target ON and open to the ring |
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Tue Jun 10 16:46:39 2025, JM, CB, EW, AY, PC, 150 keV - Run64 42x
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Run 64 started.
150 keV/u beam on target, Target overlap confirmed with lifetime measurement using bunched beam.
We do not see Rutherford on the detector - perhaps this is a calibration issue - perhaps too much noise at threshold. |
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Tue Aug 26 14:43:44 2025, JM, CB, EW, CARME on, background run
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26 August
14:40
Turned CARME on |
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Fri Jun 7 14:09:04 2024, JM, CB, DR, CN, LB, Run 44 - 15N Data Taking
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15:35
Electron cooler voltage set point = 244.3 V
Electron cooler voltage readout = 243.75 V |
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Tue Jun 4 14:13:17 2024, JM, CB, DB, US, Run 32- beam only background
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15:15
Run 32 started - Beam, no target
Beam energy = 3 MeV. |
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Sat Feb 17 14:29:03 2024, JM, CB, AR, AB, Run 40 - cooled beam on target 31x
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15:27
Run 40 started cooled beam on target
Detectors IN (left arm pot =36.5 mm, right arm pot = 70.49 mm). Stationary. Same as run 35 |
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Thu Sep 17 10:13:43 2020, JM, CB(remotely), Bakeout cooling and pumping of chamber
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The Chamber has continued to pump overnight and we have reached a pressure of 3.3e-6 mbar as of 10:15. Power cable for the hot cathode gauge was found. Gauge
did not give a reading so pin connections were checked, all is okay so it may be thepressure is still too high within the chamber, gauge was thus turned
off. I have attached the RGA from this morning which has increased accuracy so has been cleared up for most of the noise from yesterday. I have begun |
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Fri Sep 18 10:28:57 2020, JM, CB(remotely), Baking status
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10:28
Reducing temperature in steps. System cooling down. See attached.
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Mon Oct 26 10:35:05 2020, JM, CB(remotely), Cooling
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10:10 Pressure on the chamber = 3.1e-8mbar. RE-72 temperatures are ~120-125C with set limits at 80C. D2000 temperatures are ~370C. D2000's reduced
from 60W to 30W and all UHV 1400s reduced to 50W each to cool both the chamber and the D2000s so that ion pumps can be activated.
10:38 Pressure on the chamber = 1.7e-9mbar. Re-72 temperatures begining to fall and are currently ~117-122C. D2000 temperatures are ~290C. |
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Mon Sep 14 12:07:40 2020, JM, CB (remotely), Baking status
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Mon 14 Sep 09:50
Jordan moved the TC08 picolog 2 away from the chamber and built a makeshit heatshield.
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Sat Sep 26 09:31:46 2020, JM, CB (both remotely), Baking over weekend
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Sat 26 Sep
09:15 Baking started automatic mode
13:30 Baking continues, heating is slower than expected due to high chamber bottom temperatures |
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Sat Feb 12 19:48:38 2022, JM, CB, Grounding and movement tests 11x
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> Initial grounding see final grounding from elog 187. ASIC settings for all - LEC slow comparator 0x64. Note on 11/02/22 1.8*L widths with same settings
were aida1-4: 300,240,250,260
ADC data items <10k |
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Sun Feb 13 21:28:35 2022, JM, CB, Alpha background Run 32, 35 6x
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Alpha background gathered from 17:35 12/2/22 to 13:44 13/2/22 is run32. Run time ~20 hours. Some alphas visible in aida1 1*L histograms attached.
Noticed grounding of crimps that attched to cryring ground has come loose. Those crimps not ideal for our grounding cable so were loose. Grounding
cable from each fee now meet at a single grounding cable joined by an m3 nut and bolt. This grounding cable then goes to the cryring ground and |
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Fri Feb 18 20:31:33 2022, JM, CB, Alpha Background run 48
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Alpha background started with beam ON - run47. Run started 16:49 18/2/22 (beam subsequently found to be OFF)
Beam energy 4 keV, beam lifetime ~ 100 ms
Noticed aida01 and aida02 were showing increased good event rates to ~250,000, effect seen on spectrum browser and data writing rate increased |
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Sat Feb 19 14:51:58 2022, JM, CB, Burst high energy noise
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Noticed bursts of high energy noise on aida01 and aida02 during run 47 and 48.
Good events rate jumps from 10-20k range to 250k. ADC data items rate jumps from 0-1 to 2k. Data rate being written increases to ~2500 kb/s from
~20 kb/s |
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Sat Feb 19 20:08:43 2022, JM, CB, Beam ON run 49 6x
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Run started 19/2/22 21:05. Beam ON
Temperatures OK
System wide checks OK - white rabbit fails on all. |
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Sun Feb 20 22:04:21 2022, JM, CB, Alpha Background run 50
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Beam OFF. Run started 20/2/22 18:42
Fast comparator threshold HEC set to 0xff for all fees and asics to combat high energy noise bursts.
Electron cooler scalar plugged back into aida03 ~3000 per sec. |
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Wed May 24 08:35:12 2023, JM, CB, Strain reliefs (detector side) installed
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The new MACOR strain reliefs on the (detector side) have been installed. See attached photos
The two pieces of MACOR are not fully closed but we are confident that the kapton wires are sufficiently clamped.
In order for the strain reliefs to be installed in the correct poisition, two nuts on the jacking plate of the cable harness had to be removed. |
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Wed May 24 09:54:56 2023, JM, CB, Maximum detector positions 9x
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The detectors were moved into the beam axis using the motors to check the maximum distance they can be moved in without collision with one another.
Movement of both pneumatic motors results in a separation of ~ 4 cm between the detectors.
The servo motors for left and right were each moved in by 1 cm -> results in separation of 2 cm between the detectors |
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Fri May 26 08:53:54 2023, JM, CB, Strain reliefs (flange side) installed
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Strain reliefs on the flange side of the cable harness have been installed for two detectors (top right and bottom right detectors).
We require the strain relief parts from edinburgh in order to install strain reliefs for the left two detectors.
Find attached images for the strain relief installed and a video of the clamped cables during a movement cycle. |